That's awesome! I appreciate the feedback.
What I was trying to convey in the seeding advice was to have a rumor that basically says "you could learn a style by observing direwolves going to war" or whatever and have players craft an adventure for themselves out of that, so I suppose I would say the book leans toward transparency on that end. I think players generally don't want to know exactly what rewards await them at the end of an adventure, but I think a good rule of thumb is that if players are concocting plans and doing a bunch of elaborate stuff to learn a style, they should probably know in advance if learning a style is on the table.
Of course, I've only tested this stuff with my own table. I would love to hear the results of your own further experiments!